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authorEric Dumazet <edumazet@google.com>2021-11-15 09:23:03 -0800
committerJakub Kicinski <kuba@kernel.org>2021-11-16 19:07:54 -0800
commit49ecc2e9c3abd269951972fa8b23a4d081111b80 (patch)
treea80df702ca11dfc0473c23ed47b6552ce63f2a6a /include
parentnet: use .data.once section in netdev_level_once() (diff)
downloadlinux-dev-49ecc2e9c3abd269951972fa8b23a4d081111b80.tar.xz
linux-dev-49ecc2e9c3abd269951972fa8b23a4d081111b80.zip
net: align static siphash keys
siphash keys use 16 bytes. Define siphash_aligned_key_t macro so that we can make sure they are not crossing a cache line boundary. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/siphash.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/siphash.h b/include/linux/siphash.h
index bf21591a9e5e..3f7427b9e935 100644
--- a/include/linux/siphash.h
+++ b/include/linux/siphash.h
@@ -21,6 +21,8 @@ typedef struct {
u64 key[2];
} siphash_key_t;
+#define siphash_aligned_key_t siphash_key_t __aligned(16)
+
static inline bool siphash_key_is_zero(const siphash_key_t *key)
{
return !(key->key[0] | key->key[1]);